-
Question about digitized sound and videoI searched the forums and couldn't find the answer, so here it goes. Regarding digitized sound: I remember reading an article long ago about a vid…
... second screen as a back-buffer, so the pixel data is ... . I started work on a double-buffered version (where it stores ... -
A scrolling starfield - help needed!I have been messing on my speccy again recently and tried to do a scrolling (parallax - maybe) starfield. I know how to scroll using machine code but…
... -191
add hl,hl ; double it to get word offset ... screen line in the scroll buffer
db 0,0,0 ... -
Do you really want to play a new cool, interesting, but rather hard game?Just thinking about it... For example, someone will create a game. BIG game. BIG BIG game, with multiple loading scheme, numerous rewind blablabla (o…
[QUOTE=Shadow Maker;324357]Anyway, I do not ... the graphics required, a back-buffer screen, your interrupt routine, pixel ... that your game loop, back-buffer, and blitting routines all fit ... -
Where's the border line between a Spectrum and something else?I mean: there are purists out there that consider that anything that is not a true Sinclair Spectrum, with a true Z80 and a true ULA, and at most, 48…
... priority, such a memory swap, buffer flush, etc. can steal the ... LCDs: simply render to a double framebuffer at 50 Hz, and ... -
Where's the border line between a Spectrum and something else?I mean: there are purists out there that consider that anything that is not a true Sinclair Spectrum, with a true Z80 and a true ULA, and at most, 48…
... priority, such a memory swap, buffer flush, etc. can steal the ... LCDs: simply render to a double framebuffer at 50 Hz, and ... -
I just picked up a free Atari 520stJust got a free 520ST, (no cables or leads) and a small box load of games. :? dunno what to do with it, but it was being thrown out, so I grabbed it…
... , or you need a double-size screen buffer that lets you run ... -
The Making Of Manic Miner"Matthew Smith talks us through every level of his classic platformer Sat at the very desk where it was written, Matthew Smith watches Miner Willy l…
... />
A000: Back buffer
B800: Back attribute buffer, has attributes for ... another guardian)
* Fantastic double height text drawing routine!
Character scrollingOk, first I'd like to say that I'm not looking for a complete routine (but that might help) because I am hoping to write it myself and learn a bit mo…
... do a speedup by using double the storage space and build ... the table in the back buffer (so it can only run ...Double Dragon 128k - The graphicsAs you are all probably aware, I tried gathering a team of people together a few years back to make a totally re-programmed version of Double Dragon …
... included in later versions of Double Dragon? May be worth considering ... is using an empty level buffer (16K) for 3-4 pictures ...Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... may be able to double use the buffer - for example, have music ... that's in the screen buffer. I think Fairlight uses this ...RGB to VGA convertor for ZX128/+2/+2A/+3David Luftner release source code (VHDL) of SCANDOUBLER for ZX128/ZX128+2/+2A/+3: [url]http://velesoft.speccy.cz/other/scandoubler-for-zx128_fixed_by…
... up right because the first buffer will be scanned at 50Hz ... the 50Hz scan of that buffer into the VGA framebuffer, then ... scan part of the first buffer stays synced with the Speccy ... ULA contention. (Actually for a double buffered display, what I prototyped ...How to Write ZX Spectrum Games As some of you may know, it has long been my intention to produce a document which explains pretty much everything I have learned - and am still lea…
... Thirteen - Double Buffering
Creating a Screen Buffer
Scrolling the Buffer
Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... )
Whereas with linear frame buffer you need someting like
double additions) you [B]waste a ...zx81 rf outputHi All I'm not sure if this is an appropriate forum for the zx81, however I'll ask anyway;) I've connected my zx81 up to a mid 90's color tv. I can…
... modulator circuitry with a transistor buffer like this: [URL="http://www ... be.
Above transistor buffer (+ capacitor if used) fits comfortably ... case.[/QUOTE]
I double that....
I used ...yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... to make one circular byte buffer for example and reuse the ... all drivers needing a circular buffer, not create 5 different implementations ... an IEEE single and maybe double precision implemnetation if someone has ...Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…
... />
(1) use a back buffer for the sprites and erase ... />
(2) use a back buffer for the entire screen and ... /> (3) (128K machines only) Hardware double buffering. That is, display the ...Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…
... to run at 25fps and double that number to approximately 10 ... write shifted sprites to a buffer area and then blit those ...Rendering techniques in emulatorsI've been giving thought to the possibility of speeding up the rendering in Zero considering I've been putting it off long enough. My approach is c…
... you're writing to a buffer - don't clear it at ... dumping the contents of that buffer to the display, only dump ... understood it having only written double-buffering routines on an ST ... old display as your second buffer.Minor Update to Gasman's Midi2BEEPDon't know whether this is worthy an announcement, but for those of you who enjoyed Gasman's midi2BEEP utility, a new variant has been made called mi…
... stupid in the end... I double checked the listing that was ... (ie: double spaced), prior copying across to Unreal's keyboard buffer... (note ...GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
... messages are almost impossible without double buffering. the point being: no ... when copying screen from shadow buffer. if done inside drawing function ...Disc rotThis is happening to me more commonly,despite taking care of cd's/dvd's they decide not to play all sudden,i don't bother using the data recovery sof…
... find the thing you want. Double clicking the file is approximately ... seconds...not really a deal maker though is it.
IN or INKEY ?just curious which is better to use.. I have a menu done.. and use 6/7 to go up down it + space to cycle thru the options (using inkey).. obv. if I w…
... the value of the keyboard buffer (or along them lines) ?
double high fonts on 64 for ...IN or INKEY ?just curious which is better to use.. I have a menu done.. and use 6/7 to go up down it + space to cycle thru the options (using inkey).. obv. if I w…
... the value of the keyboard buffer (or along them lines) ?
double high fonts on 64 for ...Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... that line in the buffer (not the start of ...
Of course, your buffer can then be wider than ... you're using an intermediate buffer to add sprites.
... passes to change the buffer address to start reading ... row address table - either double it in length so ...Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... contention etc you have to buffer a line of output to ... the previous one twice at double speed.
scan doublers ...Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... contention etc you have to buffer a line of output to ... the previous one twice at double speed.
scan doublers ...SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]
... . So it's incapable of double-buffering the enhanced colour screens ... /> The only screens it can buffer and display independently are two ...Getting an 14Mhz crystal to oscillate?I am building a circuit with an 74LS32 and a 74LS193 to work as frequency divider. Though I have hit a snag, how to I wire up a crystal to make it os…
... necessary, add another inverter to buffer the output signal. Depending on ... logic like 74AC family to buffer or divide the signal down ... and example circuits out there, double it for half the frequency ...Coding for 128kHi all, I wonder if anyone can suggest any useful reading/threads/examples on the fundamentals of 128k coding. Chapter 24 of the +2 manual has prov…
... x2 if we're talking double buffering since... let's ... on case. all software double buffering methods has one significant ... . and honestly, implementing dirty buffer in good way is not ... examine possibility to use hardware double buffering and THEN perhaps choose ...Coding for 128kHi all, I wonder if anyone can suggest any useful reading/threads/examples on the fundamentals of 128k coding. Chapter 24 of the +2 manual has prov…
... on case. all software double buffering methods has one significant ... . and honestly, implementing dirty buffer in good way is not ... examine possibility to use hardware double buffering and THEN perhaps ... as choosing the appropriate draw buffer based on the high ...
